77734949 has 8 divisors (see below), whose sum is σ = 80451840. Its totient is φ = 75031200.

The previous prime is 77734933. The next prime is 77734961. The reversal of 77734949 is 94943777.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77734949 - 2⁴ = 77734933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77734897 and 77734906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77734249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9614 + ... + 15744.

It is an arithmetic number, because the mean of its divisors is an integer number (10056480).

Almost surely, 2^77734949 is an apocalyptic number.

It is an amenable number.

77734949 is a deficient number, since it is larger than the sum of its proper divisors (2716891).

77734949 is a wasteful number, since it uses less digits than its factorization.

77734949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6571.

The product of its digits is 1333584, while the sum is 50.

The square root of 77734949 is about 8816.7425390560. The cubic root of 77734949 is about 426.7813563617.

The spelling of 77734949 in words is "seventy-seven million, seven hundred thirty-four thousand, nine hundred forty-nine".